The measure panel's mode buttons sit inside a maplibregl-ctrl-group
container (for the ruler button's own 29x29 sizing) — its global
"button" rule reaches them too, clipping "Distance"/"Area" into a
fixed 29px square with zero padding instead of sizing to fit the
text. Fixed by upping specificity (".measure-panel .measure-panel__mode")
rather than fighting the cascade with !important.
In distance mode, each segment between two clicked points now shows
its own length at its midpoint, not just the running total in the
panel — a symbol layer keyed off the existing source, filtered apart
from the vertex circles by a new "role" property.
Verified both in a real browser (panel no longer overlaps; two
638m segments rendered and labeled correctly summing to the panel's
1.28km total).
A ruler button in the top-left control stack, matching NPS's own
Area/Distance ruler. Click to add vertices; distance sums haversine
segment lengths, area uses the spherical-excess polygon formula
(same one turf.js's area() uses) rather than a flat shoelace, since a
flat approximation drifts at park-boundary scale. SI units only
(m/km, m²/km²) — no imperial toggle.
randy